http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109207721-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-14 |
| filingDate | 2018-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109207721-B |
| titleOfInvention | Method for crystallizing and separating ammonium metavanadate from vanadium-containing raw material roasting clinker leaching solution |
| abstract | The invention relates to a method for crystallizing and separating ammonium metavanadate from a vanadium-containing raw material roasting clinker leaching solution, which comprises the following steps: carrying out solid-liquid separation on leachate obtained after leaching vanadium-containing raw material roasting clinker by ammonium oxalate to obtain a circulating liquid and crystal slag mixture; dissolving vanadium in the obtained crystal slag mixture, and performing solid-liquid separation after complete dissolution to obtain tailings and a liquid before crystallization; and (3) carrying out evaporative crystallization on the obtained liquid before crystallization, and carrying out solid-liquid separation after crystallization is finished to obtain ammonium metavanadate crystals and crystallization mother liquor. The invention adopts an evaporation crystallization method to realize the separation of ammonium metavanadate in an ammonium oxalate solution system, and the ammonium metavanadate can be almost completely crystallized and separated out. In the crystallization process, the evaporation energy consumption is low, scaling is not easy, and the ammonium oxalate solution obtained after evaporation crystallization can be returned to ammonium salt for leaching, so that the cyclic utilization of the medium is realized. The whole process is simple to operate and environment-friendly, and the reaction medium can be recycled in the whole process, so that the method has good economic benefit and application prospect. |
| priorityDate | 2018-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.